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XJ Ask the Question Thread
03-06-2014, 03:15 PM
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Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
Ok. Your right. The folks a Felpro and the engineers that designed the 4.0 did not think much of it so they made 2 different gaskets just because. We are talking bore diameter so what the heck if the gasket it over hangs into the cylinder by .001. No big deal. Just run it.
But then again, if you had any REAL experience with engines you would know that.......
03-06-2014, 03:29 PM
Beach Bum
Both of the ingredients (acetone, ATF) are nasty and harmful to you. I would not spray it. Drip from a turkey baster maybe.
Last edited by SteveMongr; 03-06-2014 at 03:55 PM. Reason: spelling,again
03-06-2014, 04:06 PM
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Year: 1999 Jeep Cherokee
Model: Cherokee
Engine: 4.0
Like I said, you are right and the engineers are wrong. Carry on.
03-06-2014, 04:24 PM
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Year: 2000
Model: Cherokee
Engine: 4.0
i run an early head with a late block and a late model gasket and it works just fine. Either gasket would work fine. I'm not sure there is even a difference. The head gasket I bought listed for 87-03. And it's a felpro. The only differences between years at advance were when buying a gasket set because of the different intake/exhaust manifold.
Last edited by bhennessee1; 03-06-2014 at 04:31 PM.
03-06-2014, 04:49 PM
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Year: 1998
Model: Cherokee
Engine: 4.0
Not an xj, but still a Jeep. 2006 Wrangler X, 4.0, 42rle four speed auto trans. After wheelin one day it will no longer shift into 3rd, or 4th (OD). Threw codes p0700 (pcm communication problem) and p0733 (incorrect 3rd gear ratio). When trying to shift from 2nd to 3rd it will try to engage however will kick back down to 2nd gear. Changed the fluid, filter, and input speed sensor. Little to no metal in the old fluid and no signs of clutch friction material. Now it will shift into 3rd however only on decel, once you give it gas it's right back to 2nd. On decel you have maximum engine vacuum, which would typically decrease line pressure... Pretty weird that the drb3 scanner Im using reads MAP vacuum at 12 (engine at idle), however MAP output voltage correlates with vacuum increase/decrease. Might try swapping the MAP and Output Speed Sensor next. Does this sound familiar to anyone?
Last edited by straightsixjeep; 03-06-2014 at 04:51 PM.
03-06-2014, 04:57 PM
Herp Derp Jerp
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Year: 1999
Model: Cherokee
Engine: 4.0L OBD-II
03-06-2014, 05:35 PM
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Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
Aw, did we hit a tender spot? Gonna pick up your toys and go home?
Grow a pair, wouldya? You have no knowledge of the real world engine stuff. Only a ONE THOUSANDTH measurement difference you read on the interwebs. Have you ever held a set of calipers in your hand? How thick is a human hair in thousandths?
Ever take three 4.0s and make them into one? I have. Ever built a Jeep 4.6 stroker? I have. Ever put an HO motor into a Renix after match porting the head and manifolds? I have.
Datsun 3.0 stroker motor? I have. Alfa Romeo 2000 cc motor? I have.
VW 1641 motor? I have. Jeep 401 V8? I have.
Grow a pair, wouldya? You have no knowledge of the real world engine stuff. Only a ONE THOUSANDTH measurement difference you read on the interwebs. Have you ever held a set of calipers in your hand? How thick is a human hair in thousandths?
Ever take three 4.0s and make them into one? I have. Ever built a Jeep 4.6 stroker? I have. Ever put an HO motor into a Renix after match porting the head and manifolds? I have.
Datsun 3.0 stroker motor? I have. Alfa Romeo 2000 cc motor? I have.
VW 1641 motor? I have. Jeep 401 V8? I have.
03-06-2014, 05:42 PM
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Location: Arkansas
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Year: 99
Model: Cherokee
Aw, did we hit a tender spot? Gonna pick up your toys and go home?
Grow a pair, wouldya? You have no knowledge of the real world engine stuff. Only a ONE THOUSANDTH measurement difference you read on the interwebs. Have you ever held a set of calipers in your hand? How thick is a human hair in thousandths?
Ever take three 4.0s and make them into one? I have. Ever built a Jeep 4.6 stroker? I have. Ever put an HO motor into a Renix after match porting the head and manifolds? I have.
Datsun 3.0 stroker motor? I have. Alfa Romeo 2000 cc motor? I have.
VW 1641 motor? I have. Jeep 401 V8? I have.
Grow a pair, wouldya? You have no knowledge of the real world engine stuff. Only a ONE THOUSANDTH measurement difference you read on the interwebs. Have you ever held a set of calipers in your hand? How thick is a human hair in thousandths?
Ever take three 4.0s and make them into one? I have. Ever built a Jeep 4.6 stroker? I have. Ever put an HO motor into a Renix after match porting the head and manifolds? I have.
Datsun 3.0 stroker motor? I have. Alfa Romeo 2000 cc motor? I have.
VW 1641 motor? I have. Jeep 401 V8? I have.
Win!!!
03-06-2014, 06:54 PM
CF Veteran
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Year: 1988
Model: Cherokee
Engine: 4.0